Interrogate ECU, Retrieve Diagnostic Trouble Codes and or Data. Advise Customer of Needed Repairs. Found Multiple Communication Fault Codes across all modules. All Codes reference lack of PCM Communication. See Attached Ran Electrical Systems test, all systems passed at this time. See Attached. If symptoms persist, recommend replacing batty and clearing fault codes. Possible dip in start voltage "can' cause com faults.
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